/* About page — WEEX-inspired */

.ab-page {
  padding: 80px 0 72px;
  background: var(--bg-dark);
  min-height: calc(100vh - 64px);
}

/* Sub-nav */
.ab-page-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin-bottom: 48px;
  border-bottom: 1px solid var(--border-color);
}

.ab-page-nav-link {
  color: var(--light-text);
  font-size: 16px;
  font-weight: 600;
  position: relative;
  padding: 0 0 14px;
  margin-bottom: -1px;
  text-decoration: none;
}

.ab-page-nav-link.active {
  color: var(--dark-text);
}

.ab-page-nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--primary-brown);
}

.ab-page-nav-link:hover:not(.active) {
  color: var(--dark-text);
}

/* Hero */
.ab-hero {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 40px;
  align-items: center;
  margin-bottom: 80px;
}

.ab-hero-title {
  font-size: clamp(40px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 16px;
}

.ab-hero-subtitle {
  color: var(--light-text);
  font-size: 17px;
  line-height: 1.6;
  max-width: 480px;
  margin-bottom: 32px;
}

.ab-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: opacity 0.2s, transform 0.2s;
}

.ab-btn:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

.ab-btn-primary {
  background: var(--btn-solid-bg, #fff);
  color: var(--btn-solid-text, #111);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.ab-btn-primary:hover {
  background: var(--btn-solid-hover, #f0f0f0);
}

.ab-btn-outline {
  background: var(--btn-glass-bg, rgba(255, 255, 255, 0.07));
  color: var(--btn-glass-text, rgba(255, 255, 255, 0.92));
  border-color: var(--btn-glass-border, rgba(255, 255, 255, 0.16));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.ab-btn-outline:hover {
  background: var(--btn-glass-hover, rgba(255, 255, 255, 0.12));
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
}

/* Hero visual */
.ab-hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.ab-hero-image {
  width: 100%;
  max-width: 420px;
  height: auto;
  display: block;
  object-fit: contain;
}

/* Why section */
.ab-why {
  margin-bottom: 88px;
}

.ab-section-kicker {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 700;
  margin-bottom: 28px;
}

.ab-why-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 20px;
  align-items: stretch;
}

.ab-why-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.ab-why-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
}

.ab-why-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.ab-why-card p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--light-text);
}

.ab-why-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.ab-why-icon--shield {
  background: rgba(245, 197, 24, 0.12);
  color: var(--primary-brown);
}

.ab-why-icon--trophy {
  background: rgba(77, 212, 172, 0.12);
  color: var(--teal);
}

.ab-why-icon--chart {
  background: rgba(98, 126, 234, 0.15);
  color: #8fa4ff;
}

.ab-why-icon--globe {
  background: rgba(255, 255, 255, 0.06);
  color: var(--dark-text);
}

.ab-mission-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.ab-mission-media img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
}

.ab-mission-body {
  padding: 24px;
  flex: 1;
}

.ab-mission-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary-brown);
  font-weight: 700;
  margin-bottom: 8px;
}

.ab-mission-body h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.ab-mission-body p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--light-text);
}

/* Roadmap */
.ab-roadmap {
  margin-bottom: 88px;
}

.ab-roadmap-title {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 700;
  margin-bottom: 28px;
}

.ab-roadmap-panel {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 40px 40px 32px;
  overflow: hidden;
  min-height: 280px;
}

.ab-roadmap-map {
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image: radial-gradient(circle, rgba(255, 255, 255, 0.18) 1px, transparent 1px);
  background-size: 18px 18px;
  mask-image: radial-gradient(ellipse at 70% 50%, black 20%, transparent 75%);
  pointer-events: none;
}

.ab-roadmap-content {
  position: relative;
  z-index: 1;
  max-width: 520px;
  min-height: 120px;
  margin-bottom: 40px;
}

.ab-roadmap-slide h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.ab-roadmap-slide p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--light-text);
}

.ab-timeline {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

.ab-timeline-year {
  background: none;
  border: none;
  color: var(--light-text);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 0;
  position: relative;
  transition: color 0.2s;
}

.ab-timeline-year:hover {
  color: var(--dark-text);
}

.ab-timeline-year.active {
  color: var(--primary-brown);
}

.ab-timeline-year.active::after {
  content: "";
  position: absolute;
  left: 50%;
  top: -21px;
  transform: translateX(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary-brown);
  box-shadow: 0 0 0 4px rgba(245, 197, 24, 0.2);
}

/* Products band */
.ab-products {
  margin-bottom: 72px;
}

.ab-products-inner {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  align-items: center;
  margin-bottom: 28px;
}

.ab-products-copy h2 {
  font-size: clamp(26px, 3.5vw, 34px);
  font-weight: 700;
  margin-bottom: 14px;
}

.ab-products-copy p {
  color: var(--light-text);
  line-height: 1.65;
  margin-bottom: 24px;
  max-width: 480px;
}

.ab-products-visual {
  position: relative;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ab-products-glow {
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 197, 24, 0.25) 0%, transparent 70%);
  filter: blur(8px);
}

.ab-coin {
  position: absolute;
  width: 100px;
  height: auto;
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.5));
}

.ab-coin--btc {
  left: 20%;
  top: 20%;
  z-index: 2;
}

.ab-coin--eth {
  right: 15%;
  bottom: 10%;
  z-index: 3;
  width: 90px;
}

.ab-product-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.ab-product-link {
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  color: var(--dark-text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: border-color 0.2s, color 0.2s;
}

.ab-product-link:hover {
  border-color: var(--primary-brown);
  color: var(--primary-brown);
}

/* Stats */
.ab-stats {
  margin-bottom: 72px;
}

.ab-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.ab-stat {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 28px 24px;
  text-align: center;
}

.ab-stat-value {
  display: block;
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  color: var(--primary-brown);
  margin-bottom: 6px;
}

.ab-stat-label {
  font-size: 13px;
  color: var(--light-text);
}

/* CTA */
.ab-cta {
  text-align: center;
  padding: 56px 24px;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  background: linear-gradient(135deg, var(--bg-panel) 0%, rgba(245, 197, 24, 0.04) 100%);
}

.ab-cta h2 {
  font-size: clamp(24px, 3.5vw, 32px);
  font-weight: 700;
  margin-bottom: 12px;
}

.ab-cta p {
  color: var(--light-text);
  max-width: 560px;
  margin: 0 auto 28px;
  line-height: 1.65;
}

.ab-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

/* Responsive */
@media (max-width: 1024px) {
  .ab-why-grid {
    grid-template-columns: 1fr;
  }

  .ab-mission-card {
    max-width: 480px;
  }

  .ab-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .ab-hero {
    grid-template-columns: 1fr;
  }

  .ab-hero-image {
    max-width: 320px;
    margin: 0 auto;
  }

  .ab-why-cards {
    grid-template-columns: 1fr;
  }

  .ab-products-inner {
    grid-template-columns: 1fr;
  }

  .ab-products-visual {
    order: -1;
    height: 180px;
  }

  .ab-roadmap-panel {
    padding: 28px 24px 24px;
  }
}

@media (max-width: 480px) {
  .ab-page {
    padding-top: 72px;
  }

  .ab-stats-grid {
    grid-template-columns: 1fr;
  }

  .ab-page-nav {
    gap: 20px;
  }
}